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Nomos Glashütte · Ludwig

Strap for Ludwig Automatik

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width

20mm
20 mm strapsAll Nomos Glashütte
Lug width20 mm
Case diameter40 mm
Reference251
FamilyLudwig
MovementNomos Glashütte caliber Epsilon hours, minutes, small seconds
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

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Straps for the Ludwig 251

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Ludwig 251, seen from the bench

The Nomos Glashütte Ludwig 251 is a 40mm stainless steel automatic watch featuring the proprietary Epsilon caliber with 21,600 vph and 43 hours power reserve. The watch has 20mm lugs and a pure white dial with applied hour markers and sub-seconds at 6 o'clock. A sapphire caseback reveals Glashütte finishing techniques including perlage and Côtes de Genève. The Ludwig 251 embodies Bauhaus design principles where form follows function with precise geometric proportions.

Frequently asked questions

What is the lug width of the Nomos Glashütte Ludwig 251?

The Nomos Glashütte Ludwig 251 is fitted with a 20mm lug width, measured between the two lugs where the strap attaches. This dimension is standard across all Ludwig models with a 40mm case diameter and is essential for ensuring correct strap compatibility.

What is the best strap for the Nomos Ludwig 251?

The ideal strap depends on usage and personal preference. For formal elegance we recommend alligator in cognac or slate grey; for daily versatility, vegetable-tanned leather in black or brown; for dynamic styling, a NATO in Oxford textile. All straps must feature a 20mm lug width.

How do I change the strap on my Nomos Ludwig 251?

Changing the strap on the Ludwig 251 requires a dedicated spring bar removal tool. Place the watch face-down on a soft surface, locate the spring bars at the lugs, gently remove them and disconnect the worn strap. Insert the new strap by aligning the holes and reinserting the spring bars until fully locked.

Can I use an aftermarket 20mm strap on my Ludwig 251?

Absolutely. The Ludwig 251, with its 20mm lug width, is compatible with any quality aftermarket strap specifically made for this dimension. We recommend straps in alligator, vegetable-tanned leather, or FKM rubber, hand-stitched for durability and precision.

How long does a leather strap last on a Nomos Ludwig 251?

A quality leather strap (alligator or vegetable-tanned calf) typically lasts 5-8 years with regular use, provided proper maintenance is observed: avoid prolonged water exposure and direct humidity, apply conditioning balm 2-3 times yearly. FKM rubber straps have a longer lifespan, up to 10 years, due to superior resistance to atmospheric agents.

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only